One way to update a specific field in an object format state in ReactJS is to use the spread operator to create a copy of the state object, update the specific field, and then set the state with the updated object. For example:
this.state = {
user: {
name: 'John',
age: 30,
email: 'john@example.com'
}
}
// Updating the user's email
const updatedUser = {...this.state.user, email: 'johndoe@example.com'}
this.setState({
user: updatedUser
})
In this example, we first create a copy of the user
object using the spread operator and update the email
field. Then we set the state with the updated object using setState()
.
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2022-08-27 11:00:00 +0000
Seen: 11 times
Last updated: May 17 '21
How can JSON be decoded while using a universal interface as a field?
How can I maintain the changes made to the checkout field in Woocommerce?
How can I display the address field from the lead object in various sections?
How can I use sys_file_reference to retrieve images from a new field in tx_news?
What is the process for identifying whether a frame is odd or even within an interlaced image?
How to create a must-exist query in Elasticsearch?
Why is GlobalHotKeys (react-hotkeys) not functioning while the input field is in focus?
What is the process for representing a JSON object that contains slashes in its field name?
How can I format the MS Word \# field code to replace points with commas?